Question

Qual é a raiz quadrada de 245 ?

Answer 1

olá!

√245                                                           245] 5

 √ 5. 7²                                                          49] 7

 7√5                                                                7] 7

                                                                        1    5. 7 ² 

bons estudos!

Answer 2

Resposta:

$\boxed{ \boxed{ \bf{7 \sqrt{5} } } }$

Explicação passo-a-passo:

$\sqrt{245} = \\ \\ 245 |5 \\ 49 \: \: |7 \\ 7 \: \: \: \: |7 \\ 1 \: \: \: \: \boxed{5\cdot {7}^{2} } \\ \\ \sqrt{5\cdot {7}^{2} } = \\ \sqrt{5} \sqrt{ {7}^{2} } = \\ \sqrt{5} \sqrt{49} = \\ \bf{7 \sqrt{5} }$